摘要
在换道安全研究中,次近邻车辆是提升换道安全的重要因素。文章基于下一代仿真数据,提取次近邻车辆数据,并引入速度变化强度概念,结合换道初始速度分类分析了次近邻车辆在换道过程中的速度变化情况;对比分析了不同速度变化强度下,直接相邻车辆和次近邻车辆的车头时距与前车速度差的变化关系;使用替代安全措施衡量次近邻车辆刹车碰撞风险。建立速度变化强度、初始速度、速度差与次近邻车辆安全之间的关系,为进一步提升道路行驶安全提供了理论基础。
In research of lane-changing safety problem,the next-nearest following vehicle is an important factor to be considered.Extracting the data of next-nearest following vehicles,the velocity variation of lane changing process was classified and analyzed by introducing the intensity of velocity variation,combined with initial lane changing velocity and based on Next Generation Simulation trajectory data.Then the tendency of time headway varied with its speed difference was compared with following vehicles considering different intensity of velocity variation.One of surrogate safety measures was applicated to measure the braking risk of next-nearest following vehicles.Then the relationship is established between the intensity of velocity variation,initial velocity,speed difference and the safety of the next-nearest following vehicle,which in turn provides theoretical basis for improving driving safety on road.
作者
鹿心宁
傅白白
李树彬
LU Xinning;FU Baibai;LI Shubin(School of Traffic and Engineering, Shandong Jianzhu University, Jinan 250101, China;School of Architecture, Shandong Jianzhu University, Jinan 250101, China;Key Laboratory of Digital Simulation in Architecture and Urban-Rural Spatial Design in Universities of Shandong, Jinan 250101, China;Department of Traffic Management Engineering, Shandong Police College, Jinan 250014, China)
出处
《山东建筑大学学报》
2021年第6期67-74,共8页
Journal of Shandong Jianzhu University
基金
国家自然科学基金项目(71871130)
山东省高等学校科技计划项目(J17KA211)。
关键词
交通安全
换道行为
次近邻车辆
速度变化强度
车头时距
road safety
lane-changing behaviors
next-nearest following vehicle
intensity of velocity variation
time headway
